package com.ljx.javaredis.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.time.Duration;

/**
 * @author LJX
 * @Description: TODO
 * @Date: 2022/12/7 14:56
 * @Version 1.0
 */
@Configuration
//默认容器是不识别缓存的注解。
@EnableCaching
public class RedisConfiguration {
	@Bean //把方法的返回对象交于容器管理[spring]
	public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
		RedisTemplate<String, Object> template = new RedisTemplate<>();
		RedisSerializer<String> redisSerializer = new StringRedisSerializer();
		Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
		ObjectMapper om = new ObjectMapper();
		om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
		om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
		jackson2JsonRedisSerializer.setObjectMapper(om);
		template.setConnectionFactory(factory);
		//key序列化方式
		template.setKeySerializer(redisSerializer);
		//value序列化
		template.setValueSerializer(jackson2JsonRedisSerializer);
		//value hashmap序列化  filed value
		template.setHashKeySerializer(redisSerializer);
		template.setHashValueSerializer(jackson2JsonRedisSerializer);
		return template;
	}

	@Bean
	public CacheManager cacheManager(RedisConnectionFactory factory) {
		RedisSerializer<String> redisSerializer = new StringRedisSerializer();
		Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
		//解决查询缓存转换异常的问题
		ObjectMapper om = new ObjectMapper();
		om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
		om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
		jackson2JsonRedisSerializer.setObjectMapper(om);
		// 配置序列化（解决乱码的问题）,过期时间600秒
		RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()
				.entryTtl(Duration.ofSeconds(600)) //缓存过期10分钟 ---- 业务需求。
				.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer))//设置key的序列化方式
				.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer)) //设置value的序列化
				.disableCachingNullValues();
		RedisCacheManager cacheManager = RedisCacheManager.builder(factory)
				.cacheDefaults(config)
				.build();
		return cacheManager;
	}
}
